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ATD LOC-23004 Adjustable Quadlock T-Harness 4 Channel High-Low Line Out Converter
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ATD LOC-23004 Adjustable Quadlock T-Harness 4 Channel High-Low Line Out Converter

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SKU: LOC-23004
GTIN: 5056900803918
MPN: 23004
  • Adj 2 channel line output converter with built in amplifier remote trigger
  • Converts 2 channels of speaker level audio to 2 channels of line level audio
  • Interface detects an audio signal and generates an amplifier turn on signal
  • Amp stays on between tracks or during moments of silent audio
  • Experience enhanced sound quality

We ship in-stock items the same day when ordered before 3pm. For out-of-stock products, call to backorder. We’ll notify you as soon as it's ready to ship.

Our Price:
£49.99
RRP:   £79.99
Our Price:
Now: £41.66
RRP:   £66.66
Was:  
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Next-Day Delivery Available

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To UK mainland on orders over £30.

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Call to arrange pickup from us.

Call: 01691 886130

Call for back-orders or large quantities.

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MAIN FEATURES

 

Our T-Harness cables are designed to give you safe and easy access to power and speaker connections from your vehicle's factory radio harness, without cutting or damaging any original wiring. Each harness is tailored to fit specific car models, ensuring a clean and secure installation.

 

Using a T-Harness allows you to maintain full functionality of your OEM head unit. All original features—such as steering wheel controls, display settings, and factory audio—continue to work as intended, with no interference or loss of performance.

 

This setup is ideal for retrofitting components like hands-free Bluetooth kits, power amplifiers, or high-low converters. It provides a reliable way to upgrade or expand your audio and communication systems while preserving the integrity of your vehicle's original electrical system.

 

 

VEHICLE COMPATIBILITY LIST

 

For vehicles with OEM amplified systems.

  • Audi A1 (2010-2019
  • Audi A3 (2003-2013)
  • Audi A4 (2000-2009)
  • Audi A5 (2007-2010)
  • Audi R8 (2007-2015)
  • Audi Q5 (2008-2016)
  • Audi TT (2006-2014)
  • BMW 1 Series (2004-2013)
  • BMW 3 Series (1998-2004
  • BMW 5 Series (2000-2010)
  • BMW 6 Series (2004-2010)
  • BMW 7 Series (2001-2008)
  • BMW X3 (2004-2010
  • BMW X5 (2000-2006)
  • BMW Z4 (2002-2016)
  • BMW X1 (2009-2015
  • BMW X5 (2007-2013)
  • BMW X6 (2008-2014)
  • Citroen C1 (2012-2014
  • Citroen C2 (2005-2010
  • Citroen C3 (2005-2016
  • Citroen C4 (2004-2010
  • Citroen C5 (2004-2008
  • Citroen C6 (2004-2012)
  • Citroen C8 (2008-2014)
  • Citroen Berlingo (2008-2018)
  • Citroen DS3 (2010-2016)
  • Citroen DS4 (2011-2015)
  • Citroen Jumpy (2007-2016)
  • Fiat Scudo (2007-2016)
  • Ford C-Max (2003-2010)
  • Ford Fiesta (2005-2008)
  • Ford Focus (2004-2010)
  • Ford Fusion (2005-2012)
  • Ford Galaxy (2006-2015)
  • Ford Kuga (2008-2012
  • Ford Mondeo (2003-2014)
  • Ford S-Max (2006-2015
  • Ford Transit (2006-2014)
  • Ford Transit Connect (2006-2013)
  • MAN TGA, TGL, TGM, TGS, TGX (2007-2020)
  • Mercedes A-Class (2004-2012)
  • Mercedes B-Class (2005-2011)
  • Mercedes C-Class (2004-2015
  • Mercedes Citan (2021-2023)
  • Mercedes CLC (2008-2011)
  • Mercedes CLK (2005-2010)
  • Mercedes CLS (2008-2010)
  • Mercedes E-Class (2008-2013)
  • Mercedes G-Class (2007-2012)
  • Mercedes M-Class (2005-2011)
  • Mercedes R-Class (2005-2010)
  • Mercedes SLK-Class (2008-2011)
  • Mercedes Sprinter (2006-2023)
  • Mercedes Vito (2006-2023)
  • Mini R50/R53 (2001-2006)
  • Mini R52 (2004-2008)
  • Mini R55/R56/R57/R58/R59 (2006-2015)
  • Nissan Primastar (2006-2010)
  • Peugeot 207 (2006-2015)
  • Peugeot 307 (2005-2009)
  • Peugeot 308 (2009-2013)
  • Peugeot 407 (2005-2011)
  • Peugeot 807 (2008-2014)
  • Peugeot Partner (2008-2015)
  • Porsche 911 (2008-2012)
  • Porsche Boxster (2008-2016)
  • Porsche Cayenne (2007-2017)
  • Porsche Cayman (2008-2016)
  • Porsche Panamera (2009-2016)
  • Renault Trafic (2006-2010)
  • Seat Alhambra (2010-2015)
  • Seat Altea (2004-2015)
  • Seat Exeo (2008-2013)
  • Seat Ibiza (2008-2015)
  • Seat Leon (2005-2012)
  • Seat Mii (2011-2016)
  • Seat Toledo (2005-2016)
  • Skoda Citigo (2011-2016)
  • Skoda Fabia (2007-2014)
  • Skoda Octavia (2003-2013)
  • Skoda Rapid (2012-2015)
  • Skoda Roomster (2006-2015)
  • Skoda Superb (2008-2015)
  • Skoda Yeti (2009-2014)
  • Toyota Proace (2013-2016)
  • Toyota Proace (2017-2021)
  • Vauxhall Astra H (2004-2010)
  • Vauxhall Combo (2004-2011)
  • Vauxhall Corsa C/D (2004-2014)
  • Vauxhall Vectra (2004-2008)
  • Vauxhall Vivaro (2006-2010)
  • Vauxhall Zafira (2005-2015)
  • VW Amarok (2010-2016
  • VW Beetle (2011-2016)
  • VW Caddy (2003-2014)
  • VW Caravelle (2003-2015)
  • VW Crafter (2006-2016
  • VW EOS (2006-2012)
  • VW Fox (2005-2011)
  • VW Golf (2003-2013)
  • VW Jetta (2005-2015)
  • VW Multivan ( 2003-2015)
  • VW Passat (2005-2014)
  • VW Polo (2005-2014)
  • VW Phaeton (2007-2010)
  • VW Scirocco (2008-2014)
  • VW Sharan (2010-2014)
  • VW T5 (2003-2015)
  • VW T6 (2015-2019)
  • VW Tiguan (2007-2016)
  • VW Touran (2003-2015)
  • VW Touareg (2003-2010)
  • VW UP (2011-2016)

 

PLEASE NOTE: 

 

Vehicles with 40 Pin Quadlock
Vehicles with CD30/MP3 OEM Radio
Vehicles without OEM amplified system
Vehicles with RD6 HU

Mercedes with Audio 20 
Mercedes with Audio 50 APS Comand NTG2.5 original Sat Nav
Mercedes Sprinter (W907/W910) with open dash with Browse 
Mercedes Citan 420 (W420) with open dash with Browse

 

UK Deliveries: Free UK mainland delivery applies to orders over £30 (exceptions apply to remote regions and islands, which will see a surcharge at checkout).


Orders Under 2kg: Most in-stock items arrive in 2–3 working days. Items held by suppliers take 4–6 working days. (Note: Saturday is not a working day).


Orders Over 2kg: Dispatched via trusted couriers including AMAZON Shipping, Royal Mail, DPD, and UPS.


Royal Mail Specifics: Royal Mail aims to deliver in 1–3 working days, though this is not guaranteed. If your item has not arrived after 7 days, please contact us. We can only replace missing items after 14 days have passed.


More information (including international delivery on our Delivery Information page.

Description

MAIN FEATURES

 

Our T-Harness cables are designed to give you safe and easy access to power and speaker connections from your vehicle's factory radio harness, without cutting or damaging any original wiring. Each harness is tailored to fit specific car models, ensuring a clean and secure installation.

 

Using a T-Harness allows you to maintain full functionality of your OEM head unit. All original features—such as steering wheel controls, display settings, and factory audio—continue to work as intended, with no interference or loss of performance.

 

This setup is ideal for retrofitting components like hands-free Bluetooth kits, power amplifiers, or high-low converters. It provides a reliable way to upgrade or expand your audio and communication systems while preserving the integrity of your vehicle's original electrical system.

 

 

VEHICLE COMPATIBILITY LIST

 

For vehicles with OEM amplified systems.

  • Audi A1 (2010-2019
  • Audi A3 (2003-2013)
  • Audi A4 (2000-2009)
  • Audi A5 (2007-2010)
  • Audi R8 (2007-2015)
  • Audi Q5 (2008-2016)
  • Audi TT (2006-2014)
  • BMW 1 Series (2004-2013)
  • BMW 3 Series (1998-2004
  • BMW 5 Series (2000-2010)
  • BMW 6 Series (2004-2010)
  • BMW 7 Series (2001-2008)
  • BMW X3 (2004-2010
  • BMW X5 (2000-2006)
  • BMW Z4 (2002-2016)
  • BMW X1 (2009-2015
  • BMW X5 (2007-2013)
  • BMW X6 (2008-2014)
  • Citroen C1 (2012-2014
  • Citroen C2 (2005-2010
  • Citroen C3 (2005-2016
  • Citroen C4 (2004-2010
  • Citroen C5 (2004-2008
  • Citroen C6 (2004-2012)
  • Citroen C8 (2008-2014)
  • Citroen Berlingo (2008-2018)
  • Citroen DS3 (2010-2016)
  • Citroen DS4 (2011-2015)
  • Citroen Jumpy (2007-2016)
  • Fiat Scudo (2007-2016)
  • Ford C-Max (2003-2010)
  • Ford Fiesta (2005-2008)
  • Ford Focus (2004-2010)
  • Ford Fusion (2005-2012)
  • Ford Galaxy (2006-2015)
  • Ford Kuga (2008-2012
  • Ford Mondeo (2003-2014)
  • Ford S-Max (2006-2015
  • Ford Transit (2006-2014)
  • Ford Transit Connect (2006-2013)
  • MAN TGA, TGL, TGM, TGS, TGX (2007-2020)
  • Mercedes A-Class (2004-2012)
  • Mercedes B-Class (2005-2011)
  • Mercedes C-Class (2004-2015
  • Mercedes Citan (2021-2023)
  • Mercedes CLC (2008-2011)
  • Mercedes CLK (2005-2010)
  • Mercedes CLS (2008-2010)
  • Mercedes E-Class (2008-2013)
  • Mercedes G-Class (2007-2012)
  • Mercedes M-Class (2005-2011)
  • Mercedes R-Class (2005-2010)
  • Mercedes SLK-Class (2008-2011)
  • Mercedes Sprinter (2006-2023)
  • Mercedes Vito (2006-2023)
  • Mini R50/R53 (2001-2006)
  • Mini R52 (2004-2008)
  • Mini R55/R56/R57/R58/R59 (2006-2015)
  • Nissan Primastar (2006-2010)
  • Peugeot 207 (2006-2015)
  • Peugeot 307 (2005-2009)
  • Peugeot 308 (2009-2013)
  • Peugeot 407 (2005-2011)
  • Peugeot 807 (2008-2014)
  • Peugeot Partner (2008-2015)
  • Porsche 911 (2008-2012)
  • Porsche Boxster (2008-2016)
  • Porsche Cayenne (2007-2017)
  • Porsche Cayman (2008-2016)
  • Porsche Panamera (2009-2016)
  • Renault Trafic (2006-2010)
  • Seat Alhambra (2010-2015)
  • Seat Altea (2004-2015)
  • Seat Exeo (2008-2013)
  • Seat Ibiza (2008-2015)
  • Seat Leon (2005-2012)
  • Seat Mii (2011-2016)
  • Seat Toledo (2005-2016)
  • Skoda Citigo (2011-2016)
  • Skoda Fabia (2007-2014)
  • Skoda Octavia (2003-2013)
  • Skoda Rapid (2012-2015)
  • Skoda Roomster (2006-2015)
  • Skoda Superb (2008-2015)
  • Skoda Yeti (2009-2014)
  • Toyota Proace (2013-2016)
  • Toyota Proace (2017-2021)
  • Vauxhall Astra H (2004-2010)
  • Vauxhall Combo (2004-2011)
  • Vauxhall Corsa C/D (2004-2014)
  • Vauxhall Vectra (2004-2008)
  • Vauxhall Vivaro (2006-2010)
  • Vauxhall Zafira (2005-2015)
  • VW Amarok (2010-2016
  • VW Beetle (2011-2016)
  • VW Caddy (2003-2014)
  • VW Caravelle (2003-2015)
  • VW Crafter (2006-2016
  • VW EOS (2006-2012)
  • VW Fox (2005-2011)
  • VW Golf (2003-2013)
  • VW Jetta (2005-2015)
  • VW Multivan ( 2003-2015)
  • VW Passat (2005-2014)
  • VW Polo (2005-2014)
  • VW Phaeton (2007-2010)
  • VW Scirocco (2008-2014)
  • VW Sharan (2010-2014)
  • VW T5 (2003-2015)
  • VW T6 (2015-2019)
  • VW Tiguan (2007-2016)
  • VW Touran (2003-2015)
  • VW Touareg (2003-2010)
  • VW UP (2011-2016)

 

PLEASE NOTE: 

 

Vehicles with 40 Pin Quadlock
Vehicles with CD30/MP3 OEM Radio
Vehicles without OEM amplified system
Vehicles with RD6 HU

Mercedes with Audio 20 
Mercedes with Audio 50 APS Comand NTG2.5 original Sat Nav
Mercedes Sprinter (W907/W910) with open dash with Browse 
Mercedes Citan 420 (W420) with open dash with Browse

 

MAIN FEATURES

 

Our T-Harness cables are designed to give you safe and easy access to power and speaker connections from your vehicle's factory radio harness, without cutting or damaging any original wiring. Each harness is tailored to fit specific car models, ensuring a clean and secure installation.

 

Using a T-Harness allows you to maintain full functionality of your OEM head unit. All original features—such as steering wheel controls, display settings, and factory audio—continue to work as intended, with no interference or loss of performance.

 

This setup is ideal for retrofitting components like hands-free Bluetooth kits, power amplifiers, or high-low converters. It provides a reliable way to upgrade or expand your audio and communication systems while preserving the integrity of your vehicle's original electrical system.

 

 

VEHICLE COMPATIBILITY LIST

 

For vehicles with OEM amplified systems.

  • Audi A1 (2010-2019
  • Audi A3 (2003-2013)
  • Audi A4 (2000-2009)
  • Audi A5 (2007-2010)
  • Audi R8 (2007-2015)
  • Audi Q5 (2008-2016)
  • Audi TT (2006-2014)
  • BMW 1 Series (2004-2013)
  • BMW 3 Series (1998-2004
  • BMW 5 Series (2000-2010)
  • BMW 6 Series (2004-2010)
  • BMW 7 Series (2001-2008)
  • BMW X3 (2004-2010
  • BMW X5 (2000-2006)
  • BMW Z4 (2002-2016)
  • BMW X1 (2009-2015
  • BMW X5 (2007-2013)
  • BMW X6 (2008-2014)
  • Citroen C1 (2012-2014
  • Citroen C2 (2005-2010
  • Citroen C3 (2005-2016
  • Citroen C4 (2004-2010
  • Citroen C5 (2004-2008
  • Citroen C6 (2004-2012)
  • Citroen C8 (2008-2014)
  • Citroen Berlingo (2008-2018)
  • Citroen DS3 (2010-2016)
  • Citroen DS4 (2011-2015)
  • Citroen Jumpy (2007-2016)
  • Fiat Scudo (2007-2016)
  • Ford C-Max (2003-2010)
  • Ford Fiesta (2005-2008)
  • Ford Focus (2004-2010)
  • Ford Fusion (2005-2012)
  • Ford Galaxy (2006-2015)
  • Ford Kuga (2008-2012
  • Ford Mondeo (2003-2014)
  • Ford S-Max (2006-2015
  • Ford Transit (2006-2014)
  • Ford Transit Connect (2006-2013)
  • MAN TGA, TGL, TGM, TGS, TGX (2007-2020)
  • Mercedes A-Class (2004-2012)
  • Mercedes B-Class (2005-2011)
  • Mercedes C-Class (2004-2015
  • Mercedes Citan (2021-2023)
  • Mercedes CLC (2008-2011)
  • Mercedes CLK (2005-2010)
  • Mercedes CLS (2008-2010)
  • Mercedes E-Class (2008-2013)
  • Mercedes G-Class (2007-2012)
  • Mercedes M-Class (2005-2011)
  • Mercedes R-Class (2005-2010)
  • Mercedes SLK-Class (2008-2011)
  • Mercedes Sprinter (2006-2023)
  • Mercedes Vito (2006-2023)
  • Mini R50/R53 (2001-2006)
  • Mini R52 (2004-2008)
  • Mini R55/R56/R57/R58/R59 (2006-2015)
  • Nissan Primastar (2006-2010)
  • Peugeot 207 (2006-2015)
  • Peugeot 307 (2005-2009)
  • Peugeot 308 (2009-2013)
  • Peugeot 407 (2005-2011)
  • Peugeot 807 (2008-2014)
  • Peugeot Partner (2008-2015)
  • Porsche 911 (2008-2012)
  • Porsche Boxster (2008-2016)
  • Porsche Cayenne (2007-2017)
  • Porsche Cayman (2008-2016)
  • Porsche Panamera (2009-2016)
  • Renault Trafic (2006-2010)
  • Seat Alhambra (2010-2015)
  • Seat Altea (2004-2015)
  • Seat Exeo (2008-2013)
  • Seat Ibiza (2008-2015)
  • Seat Leon (2005-2012)
  • Seat Mii (2011-2016)
  • Seat Toledo (2005-2016)
  • Skoda Citigo (2011-2016)
  • Skoda Fabia (2007-2014)
  • Skoda Octavia (2003-2013)
  • Skoda Rapid (2012-2015)
  • Skoda Roomster (2006-2015)
  • Skoda Superb (2008-2015)
  • Skoda Yeti (2009-2014)
  • Toyota Proace (2013-2016)
  • Toyota Proace (2017-2021)
  • Vauxhall Astra H (2004-2010)
  • Vauxhall Combo (2004-2011)
  • Vauxhall Corsa C/D (2004-2014)
  • Vauxhall Vectra (2004-2008)
  • Vauxhall Vivaro (2006-2010)
  • Vauxhall Zafira (2005-2015)
  • VW Amarok (2010-2016
  • VW Beetle (2011-2016)
  • VW Caddy (2003-2014)
  • VW Caravelle (2003-2015)
  • VW Crafter (2006-2016
  • VW EOS (2006-2012)
  • VW Fox (2005-2011)
  • VW Golf (2003-2013)
  • VW Jetta (2005-2015)
  • VW Multivan ( 2003-2015)
  • VW Passat (2005-2014)
  • VW Polo (2005-2014)
  • VW Phaeton (2007-2010)
  • VW Scirocco (2008-2014)
  • VW Sharan (2010-2014)
  • VW T5 (2003-2015)
  • VW T6 (2015-2019)
  • VW Tiguan (2007-2016)
  • VW Touran (2003-2015)
  • VW Touareg (2003-2010)
  • VW UP (2011-2016)

 

PLEASE NOTE: 

 

Vehicles with 40 Pin Quadlock
Vehicles with CD30/MP3 OEM Radio
Vehicles without OEM amplified system
Vehicles with RD6 HU

Mercedes with Audio 20 
Mercedes with Audio 50 APS Comand NTG2.5 original Sat Nav
Mercedes Sprinter (W907/W910) with open dash with Browse 
Mercedes Citan 420 (W420) with open dash with Browse

 

Shipping

UK Deliveries: Free UK mainland delivery applies to orders over £30 (exceptions apply to remote regions and islands, which will see a surcharge at checkout).


Orders Under 2kg: Most in-stock items arrive in 2–3 working days. Items held by suppliers take 4–6 working days. (Note: Saturday is not a working day).


Orders Over 2kg: Dispatched via trusted couriers including AMAZON Shipping, Royal Mail, DPD, and UPS.


Royal Mail Specifics: Royal Mail aims to deliver in 1–3 working days, though this is not guaranteed. If your item has not arrived after 7 days, please contact us. We can only replace missing items after 14 days have passed.


More information (including international delivery on our Delivery Information page.

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